Friday, December 14, 2012

MX-P50A hf power amplifier for QRP transceivers. Can be used both as a
base and mobile unit, Extremely Small Compact and light weight, Full
integration with the FT-817 using the supplied interface cable.
The amplifier incorporates various protection circuits such as high VOLTAGE,front mounted LED display.
This amplifier can be successfully used with other QRP rigs such as
the ICOM IC-703(and Elecraft KX3), though automatic band switching will
not be available and the band must be manually selected via the front
band select switch.Specifications:
Frequency (Band) Range : 80m 40m 20m-17m 15m-10m
Operating Modes : SSB CW AM RTTY and FM-Reduced duty cycle
Rf input : 5W
Out power : 50/60W
Band mode : AUTO/Manual
Power requirement : 13.8V 8A,(Cable Color Polarity Ж RED “+” BLACK “-”)
Cooling method:passive air cooling
Antenna connector : SO-239 50Ω
Size : 15/13/5 (cm) D/W/H
Weight : 1.2KGPackage list:
1x MX-P50A
1x Power cord
1x for FT-817ND ACC control cable
Price: $140 USD

My Stamp Collecting Blog

Counter Added January 1, 2011

HOW TO READ PROPAGATION NUMBERS

The A index [ LOW is GOOD ]

1 to 6 is BEST

7 to 9 is OK

11 or more is BAD

Represents the overall geomagnetic condition of the ionosphere ("Ap" if averaged from the Kp-Index) (an average of the eight 3-hour K-Indices) ('A' referring to amplitude) over a given 24 hour period, ranging (linearly) typically from 1-100 but theoretically up to 400.

The measure of total radio emissions from the sun at 10.7cm (2800 MHz), on a scale of 60 (no sunspots) to 300, generally corresponding to the sunspot level, but being too low in energy to cause ionization, not related to the ionization level of the Ionosphere.

The overall geomagnetic condition of the ionosphere ("Kp" if averaged over the planet) over the past 3 hours, measured by 13 magnetometers between 46 & 63 degrees of latitude, and ranging quasi-logarithmically from 0-9. Designed to detect solar particle radiation by its magnetic effect. A higher K-index generally means worse HF conditions.

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